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Revise bearer token code in controller, and add relay policy as a meta-data item presented to controller by nodes (to facilitate future meshiness).

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This commit is contained in:
Adam Ierymenko 2016-09-15 13:17:37 -07:00
parent 24fce0be86
commit 68e549233d
5 changed files with 77 additions and 46 deletions
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103
controller/EmbeddedNetworkController.cpp
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@ -566,42 +566,69 @@ NetworkController::ResultCode EmbeddedNetworkController::doNetworkConfigRequest(
// Determine whether and how member is authorized
const char *authorizedBy = (const char *)0;
if (!_jB(network["private"],true)) {
if (_jB(member["authorized"],false)) {
authorizedBy = "memberIsAuthorized";
} else if (!_jB(network["private"],true)) {
authorizedBy = "networkIsPublic";
// If member already has an authorized field, leave it alone. That way its state is
// preserved if the user toggles the network back to private. Otherwise set it to
// true by default for new members of public nets.
if (!member.count("authorized")) {
member["authorized"] = true;
member["lastAuthorizedTime"] = now;
member["lastAuthorizedBy"] = authorizedBy;
json ah;
ah["a"] = true;
ah["by"] = authorizedBy;
ah["ts"] = now;
ah["ct"] = json();
ah["c"] = json();
member["authHistory"].push_back(ah);
member["lastModified"] = now;
auto revj = member["revision"];
json &revj = member["revision"];
member["revision"] = (revj.is_number() ? ((uint64_t)revj + 1ULL) : 1ULL);
}
} else if (_jB(member["authorized"],false)) {
authorizedBy = "memberIsAuthorized";
} else {
char atok[256];
if (metaData.get(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_AUTH_TOKEN,atok,sizeof(atok)) > 0) {
atok[255] = (char)0; // not necessary but YDIFLO
if (strlen(atok) > 0) { // extra sanity check since we never want to compare a null token on either side
auto authTokens = network["authTokens"];
char presentedAuth[512];
if (metaData.get(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_AUTH,presentedAuth,sizeof(presentedAuth)) > 0) {
presentedAuth[511] = (char)0; // sanity check
// Check for bearer token presented by member
if ((strlen(presentedAuth) > 6)&&(!strncmp(presentedAuth,"token:",6))) {
const char *const presentedToken = presentedAuth + 6;
json &authTokens = network["authTokens"];
if (authTokens.is_array()) {
for(unsigned long i=0;i<authTokens.size();++i) {
auto at = authTokens[i];
if (at.is_object()) {
const uint64_t expires = _jI(at["expires"],0ULL);
std::string tok = _jS(at["token"],"");
if ( ((expires == 0ULL)||(expires > now)) && (tok.length() > 0) && (tok == atok) ) {
authorizedBy = "token";
member["authorized"] = true; // tokens actually change member authorization state
member["lastAuthorizedTime"] = now;
member["lastAuthorizedBy"] = authorizedBy;
member["lastModified"] = now;
auto revj = member["revision"];
member["revision"] = (revj.is_number() ? ((uint64_t)revj + 1ULL) : 1ULL);
break;
json &token = authTokens[i];
if (token.is_object()) {
const uint64_t expires = _jI(token["expires"],0ULL);
const uint64_t maxUses = _jI(token["maxUsesPerMember"],0ULL);
std::string tstr = _jS(token["token"],"");
if (((expires == 0ULL)||(expires > now))&&(tstr == presentedToken)) {
bool usable = (maxUses == 0);
if (!usable) {
uint64_t useCount = 0;
json &ahist = member["authHistory"];
if (ahist.is_array()) {
for(unsigned long j=0;j<ahist.size();++j) {
json &ah = ahist[j];
if ((_jS(ah["ct"],"") == "token")&&(_jS(ah["c"],"") == tstr)&&(_jB(ah["a"],false)))
++useCount;
}
}
usable = (useCount < maxUses);
}
if (usable) {
authorizedBy = "token";
member["authorized"] = true;
json ah;
ah["a"] = true;
ah["by"] = authorizedBy;
ah["ts"] = now;
ah["ct"] = "token";
ah["c"] = tstr;
member["authHistory"].push_back(ah);
member["lastModified"] = now;
json &revj = member["revision"];
member["revision"] = (revj.is_number() ? ((uint64_t)revj + 1ULL) : 1ULL);
}
}
}
}
@ -1137,16 +1164,15 @@ unsigned int EmbeddedNetworkController::handleControlPlaneHttpPOST(
if (b.count("authorized")) {
const bool newAuth = _jB(b["authorized"],false);
const bool oldAuth = _jB(member["authorized"],false);
if (newAuth != oldAuth) {
if (newAuth) {
member["authorized"] = true;
member["lastAuthorizedTime"] = now;
member["lastAuthorizedBy"] = "user";
} else {
member["authorized"] = false;
member["lastDeauthorizedTime"] = now;
}
if (newAuth != _jB(member["authorized"],false)) {
member["authorized"] = newAuth;
json ah;
ah["a"] = newAuth;
ah["by"] = "api";
ah["ts"] = now;
ah["ct"] = json();
ah["c"] = json();
member["authHistory"].push_back(ah);
}
}
@ -1427,13 +1453,14 @@ unsigned int EmbeddedNetworkController::handleControlPlaneHttpPOST(
if (authTokens.is_array()) {
json nat = json::array();
for(unsigned long i=0;i<authTokens.size();++i) {
auto token = authTokens[i];
json &token = authTokens[i];
if (token.is_object()) {
std::string tstr = token["token"];
if (tstr.length() > 0) {
json t = json::object();
t["token"] = tstr;
t["expires"] = _jI(token["expires"],0ULL);
t["maxUsesPerMember"] = _jI(token["maxUsesPerMember"],0ULL);
nat.push_back(t);
}
}

4
controller/EmbeddedNetworkController.hpp
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@ -143,9 +143,7 @@ private:
inline void _initMember(nlohmann::json &member)
{
if (!member.count("authorized")) member["authorized"] = false;
if (!member.count("lastAuthorizedTime")) member["lastAuthorizedTime"] = 0ULL;
if (!member.count("lastAuthorizedBy")) member["lastAuthorizedBy"] = "";
if (!member.count("lastDeauthorizedTime")) member["lastDeauthorizedTime"] = 0ULL;
if (!member.count("authHistory")) member["authHistory"] = nlohmann::json::array();
if (!member.count("ipAssignments")) member["ipAssignments"] = nlohmann::json::array();
if (!member.count("recentLog")) member["recentLog"] = nlohmann::json::array();
if (!member.count("activeBridge")) member["activeBridge"] = false;

4
controller/README.md
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@ -229,9 +229,7 @@ This returns an object containing all currently online members and the most rece
| nwid | string | 16-digit network ID | no |
| clock | integer | Current clock, ms since epoch | no |
| authorized | boolean | Is member authorized? (for private networks) | YES |
| lastAuthorizedTime | integer | Time 'authorized' was last set to 'true' | no |
| lastAuthorizedBy | string | What last set 'authorized' to 'true'? | no |
| lastDeauthorizedTime | integer | Time 'authorized' was last set to 'false' | no |
| authHistory | array[object] | History of auth changes, latest at end | no |
| activeBridge | boolean | Member is able to bridge to other Ethernet nets | YES |
| identity | string | Member's public ZeroTier identity (if known) | no |
| ipAssignments | array[string] | Managed IP address assignments | YES |

2
node/Network.cpp
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@ -1001,6 +1001,7 @@ void Network::requestConfiguration()
Dictionary<ZT_NETWORKCONFIG_METADATA_DICT_CAPACITY> rmd;
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_VERSION,(uint64_t)ZT_NETWORKCONFIG_VERSION);
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_NODE_VENDOR,(uint64_t)ZT_VENDOR_ZEROTIER);
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_PROTOCOL_VERSION,(uint64_t)ZT_PROTO_VERSION);
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_NODE_MAJOR_VERSION,(uint64_t)ZEROTIER_ONE_VERSION_MAJOR);
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_NODE_MINOR_VERSION,(uint64_t)ZEROTIER_ONE_VERSION_MINOR);
@ -1011,6 +1012,7 @@ void Network::requestConfiguration()
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_MAX_NETWORK_TAGS,(uint64_t)ZT_MAX_NETWORK_TAGS);
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_FLAGS,(uint64_t)0);
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_RULES_ENGINE_REV,(uint64_t)ZT_RULES_ENGINE_REVISION);
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_NODE_RELAY_POLICY,(uint64_t)RR->node->relayPolicy());
if (ctrl == RR->identity.address()) {
if (RR->localNetworkController) {

10
node/NetworkConfig.hpp
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@ -108,9 +108,13 @@ namespace ZeroTier {
#define ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_VERSION "v"
// Protocol version (see Packet.hpp)
#define ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_PROTOCOL_VERSION "pv"
// Software major, minor, revision
// Software vendor
#define ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_NODE_VENDOR "vend"
// Software major version
#define ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_NODE_MAJOR_VERSION "majv"
// Software minor version
#define ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_NODE_MINOR_VERSION "minv"
// Software revision
#define ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_NODE_REVISION "revv"
// Rules engine revision
#define ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_RULES_ENGINE_REV "revr"
@ -123,9 +127,11 @@ namespace ZeroTier {
// Maximum number of tags this node can accept
#define ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_MAX_NETWORK_TAGS "mt"
// Network join authorization token (if any)
#define ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_AUTH_TOKEN "atok"
#define ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_AUTH "a"
// Network configuration meta-data flags
#define ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_FLAGS "f"
// Relay policy for this node
#define ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_NODE_RELAY_POLICY "rp"
// These dictionary keys are short so they don't take up much room.
// By convention we use upper case for binary blobs, but it doesn't really matter.